PACKAGE INCLUDED: 5 pcs pig nipple waterers with filter, 5 pcs water tank connectors, 1 pcs hole opener, 1 pcs PTFE tape. Wrap the PTFE tape around the threaded interface during installation and connect it to the pipeline to prevent leakage. Water tank connector has female thread 1/2 in and male thread 3/4 in. DIMENSIONS: Pig nipple total size: 2.4 inch length x 0.78 inch diameter, thread size 1/2 inch. Open-hole diameter is 26 mm. MATERIAL: The hog nipple waterer is made of stainless steel, offering superior rust resistance and excellent oxidation resistance. The water tank connector is made of brass for long-term use. You no longer need to worry about rusting or breaking. AUTOMATIC DRINKING: When the pig touches the metal bar with its mouth, water flows out automatically and stops when released, helping reduce water waste. The pig waterer helps prevent leakage (when used with PTFE tape), bacterial contamination, and supports animal health. WIDE APPLICATION: This automatic stainless steel waterer is suitable for sows, boars, piglets, growers, finisher pigs, dogs, goats, and other livestock. Please note: Slight physical color variations may occur due to lighting and screen differences; this does not affect functionality. COLOR: Silver MATERIAL: Copper + Stainless Steel PACKAGE CONTENTS: 5 x Pig Nipple Waterer, 1 x Hole Opener, 2 x Raw Material Belts (color random, no special designation accepted). Only the items listed are included; other products are not included. Note: Light reflection and different displays may cause slight color differences between the image and the actual item. Measurement error allowance is +/- 1-3 cm.